package com.java.gulimall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.java.gulimall.product.entity.AttrEntity;
import com.java.gulimall.product.service.AttrService;
import com.java.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.java.gulimall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.java.common.utils.PageUtils;
import com.java.common.utils.Query;

import com.java.gulimall.product.dao.AttrGroupDao;
import com.java.gulimall.product.entity.AttrGroupEntity;
import com.java.gulimall.product.service.AttrGroupService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
    @Autowired
    private AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params,Long catelogId) {
        String key = (String) params.get("key");
        //select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%)
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if(!StringUtils.isEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_group_id",key).or().like("attr_group_name",key);
            });
        }
        // 0:查询全部
        if( catelogId == 0){
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }else {
            wrapper.eq("catelog_id",catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }
    }

    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        // 1.查询分类下的所有属性分组
        List<AttrGroupEntity> attrGroupEntities = this.list(new LambdaQueryWrapper<AttrGroupEntity>().eq(AttrGroupEntity::getCatelogId, catelogId));
        // 2.查询每个属性分组的所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(e -> {
            AttrGroupWithAttrsVo vo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(e, vo);
            List<AttrEntity> attrs = attrService.getRelationAttr(e.getAttrGroupId());
            vo.setAttrs(attrs);
            return vo;
        }).collect(Collectors.toList());

        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsByCatelogIdAndSpuId(Long catalogId, Long spuId) {
        // 查询当前spu对应的所有属性分组信息以及属性对应的值
        return this.baseMapper.getAttrGroupWithAttrsByCatelogIdAndSpuId(catalogId,spuId);
    }

}